COMMUNITY FORUM

Air space in Basement walls?

I have a concrete block basement that has been leaking for years. I recently purchased the house and relandscaped, That seems to have fixed it. I am going to put up 2x4 walls and insulate. I will use pressure treated lumber and was wondering if it makes sence to leave a 1" air space between the block wall and the 2x4 wall. Pro's or Con's? Any advice would be appreciated.

If it was actively leaking, and allll you did was landscape, you did nothing to fix the leak itself. You only re-diverted the flow of water. ANY water that comes to the wall will still try to leak in.

I would paint the inside surface of the walls first with Thoroseal and then wait for a full weet season to pass to be sure you have stopped the water penetration. It would be a shame to spend a lot of money and then discover next spring that it needs to be done over again.

Sorry I didn't mention that I will be stripping the painted concreate walls and applying a sealer to them. I was thinking of using Radonseal has anyone ever used it and does it work? I will look into Thoroseal thanks for the info.